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A genus of a single species in E. Asia. As in Pterocarya the fruit is a winged nutlet, but the catkins of both sexes are erect, and the fruit-catkin is cone-like, with numerous imbricate bracts. The earliest name for the genus is Petrophiloides, the type of which is a fossil infrutescence found in London Clay deposits (Bowerbank, Fossil Fruits of the London Clay (1840), p. 43 and tt. 9, 10). The palaeobotanists Reid and Chandler accordingly transferred the living species to Petrophiloides in 1933. But under modern rules of nomenclature the name Platycarya must be used for this genus, although it was published later (1843).

Species articles